Coupling device for can-lids, pipes, shafts, and similar objects.



J..K|LDEAR. COUPLlNG DEVICE FDR CAN um, mes, sums, AND SIMILAR OBJECTS.

f-PPLICAHON FILED SEPT-1G. 91L ii.l@%,l9?. Patented Dec. 14, 1915.

2 sugETg-SHEET I.

J. KlLDEAR. COUPLINGDEVICE FOR CAN LIDS, PIPES; SHAFTS, AND SIMILAROBJECTS. APPLlCATiON HLED SEPT. 15 I912. I

1,164,197, Patented Dec. 14, 1915.

2 SHEETS-SHEET 2 JOHN KILDEAR, OF LONDON, ENGLAND.

COUPLING DEVICE FOR CAN-LIBS, PIPES, SHAFTS AND SIMILAR OBJECTS.

memo r.

M Specification of Letters Patent.

Patented Dec. it, 1915.

Application filed September 16, 1912. Serial No. 720,692.

To all whom-it may concern:

Be it known that I, JOHN KILDEAR, asubject of the King of Great Britain,residing at 69 \Vavertree road, Streatham Hill, London, England, haveinvented certain new and useful Improvements in Coupling Devices forCan-Lids, Pipes, Shafts, and Similar Objects, of which the follox ing isa specification. 1

This invention relates to that kind of coupling device suitable forcan-lids, pipes, shafts and other similar objects, in which the movablepart or half of the coupling is attached to the stationary or fixed partor half by producing first an axial and then rotary motion of themovable part, as is the case for instance in bayonet locks, and inconnection with which a locking device in the form of a spring operatedpin or bolt is mounted in one of the parts of the coupling and isadapted to be protruded by the spring into a position for engaging witha hole or recess in the other part of the coupling.

The present invention consists'in the improved means for withdrawing orretracting the bolt as and when required and to this end the sirin oerated )in or bolt is of a holl .s l

low constructional form and is adapted to receive or be engaged by a keyof special form for this purpose.

In order t6 enable the invention to be readily understood reference ismade to the accompanying drawings, in which r- Figure 1 is a sideelevation of the cap and neck of a petrol can or the like having thepresent improvements applied thereto. Fig. 2 is a central verticalsection of Fig. 1 taken on a plane perpemlicular to the plane of thepaper. Fig. 3 is a plan of Fig. 2 with the cap removed. Fig. 4 is a.side elevation of the cap. Fig. 5 isan underside plan of the cap. ,Fig.6 is a side elevation of a suitable key for unfastening the lockingdevice. Fig.

7 is a side elevation of the locking pin removed. Fig. 8 is-a sideelevation of the present improvements applied to a pipe coupling. Fig. 9is a central vertical section of Fig. 8

but showing the pipe in elevation, the plane of the section being atright angles to the plane of the paper. Fig. 10 is a side e1evat'ion ofFig. 9 showing the parts of the 0011- pling separated. Fig. 11 is aninverted plan.

of the upper half of the coupling and Fig. i 12 is a plan of the lowerhalf of the coupling.

Referring tothe Figs. l to 7' of the drawings, the locking device isshown applied to a coupling employed for connecting a cap a to. forexample, the neck 6 of'a petrol can or the like. The interlockingprojections are indicatedby the reference letters 0 Z and the act ofcoupling and uncoupling will be readily understood. The locking pin 6operated upon by a spring 6 is shown mounted perpendicularly to the axisof the parts coupled and the spring bolt casing 7 which is interiorlythreaded at its open end is mounted on 'or formed in one with a flange gon the neck part Y). The end of the locking pin 6 is shown considerablyreduced at 77, forming a stud which ;adapted to enter sockets drilled inthe peripheral edges of the pnnections or lugs (Z. The casing f may beused in operation as a handle for turning the cap or coupling part. Theouter end of the pin or bolt c is formed with an axial slot or saw cutz" from which branch at different distances from the extremitytransverse slots or saw cuts 7' and it. A key Z Fig. 6 is formed withprojections m and '22. corresponding in relative position and lengthwith the slots j and 7e respectively. It will now be readily understoodthat-a bolt constructed according to this'invention can only berctracled alter inserting the special key Z into the slot 2' until theprojections m and come opposite the recesses 7' and 7c the key beingthen turned, thereby engaging the-projections ed into the open end ofthe casing, and in addition to guiding thebolt serves as an abutment forone end of the spring. The projections (I as seen in Fig. 4. may have inclincd'engaging surfaces arranged in known manner for the purpose ofdrawing the coupling parts together when turning them in the directionfor coupling. up. A guide pin 7) may-be formed on the locking bolt oradapted to engage with a guide groove or slot in the casing f. I

FigsB to 12 show a locking device "very similar to that-illustrated byFigs. 1 to 7 as applied to a coupling for a tube or pipe, but of coursethe coupling might be applied equally Well to a shaft or rod. The partsbeing referred to by reference letters similar construction andoperation of the coupling lock seen in Figs. 8 t0"12 will be readilyunderstood Without further description.

What I claim and desire to secure by Letters Patent-of the United Statesis 1- A locking device comprising in combination with a stationarycup-like member hav-. ing a plurality of spaced lugs located above thebottom Wall thereof, and a relatively r0- tatable universal ,cap'memberhaving a central tubular portion provided at its edge -with a pluralityof spaced apart lugs for engaging with the lugs of the stationary memberto thereby prevent lateral separation oi the members the lugs of saidcap member being provided with sockets, an olisaid opening to enter anyone of the sockets of the cap lugs to lock the cap and stationary memberagainst relative rotation.

In testimony whereof I aflix my signature in presence of two Witnesses.

JOHN KILDEAR.

Witnesses P. Wooowano, H. D. JAMESON.

